WO2008069658A1 - Structure de toit pour un espace de culture - Google Patents

Structure de toit pour un espace de culture Download PDF

Info

Publication number
WO2008069658A1
WO2008069658A1 PCT/NL2007/050619 NL2007050619W WO2008069658A1 WO 2008069658 A1 WO2008069658 A1 WO 2008069658A1 NL 2007050619 W NL2007050619 W NL 2007050619W WO 2008069658 A1 WO2008069658 A1 WO 2008069658A1
Authority
WO
WIPO (PCT)
Prior art keywords
retaining strip
cavity
profile
film
attachment
Prior art date
Application number
PCT/NL2007/050619
Other languages
English (en)
Inventor
Patricia Anette Martine Offermans
Original Assignee
Van Diemen B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from NL2000352A external-priority patent/NL2000352C2/nl
Priority claimed from NL2000470A external-priority patent/NL2000470C2/nl
Application filed by Van Diemen B.V. filed Critical Van Diemen B.V.
Publication of WO2008069658A1 publication Critical patent/WO2008069658A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/1407—Greenhouses of flexible synthetic material
    • A01G9/1415—Greenhouses of flexible synthetic material with double or multiple walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
    • E04H15/64—Tent or canopy cover fastenings
    • E04H15/642—Tent or canopy cover fastenings with covers held by elongated fixing members locking in longitudinal recesses of a frame
    • E04H15/646—Tent or canopy cover fastenings with covers held by elongated fixing members locking in longitudinal recesses of a frame the fixing members being locked by an additional locking member
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E04H2015/202—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework
    • E04H2015/203—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework supported by a non-inflatable structure or framework
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Definitions

  • the present invention relates to a roof for a cultivation space according to the preamble of claim 1.
  • the cultivation space is provided with a pointed roof structure, the panels of which are of a double-walled design. These may be produced by means of two light-transmitting hard polycarbonate panels which are spaced apart.
  • This wilt become more important as different methods of cultivation are being adopted.
  • the control of dispensing moisture to the crop by spraying water together with any further substances which have been incorporated therein in the respective cultivation space may be mentioned.
  • the moisture has to be controlled in such a manner that no condensation forms on the leaves, while at the same time ensuring that the moisture content is so high that moisture can be absorbed via the roots through condensation on the soil.
  • EP 1,637,031 discloses an inclined roof comprising film webs which have been shaped to form a cushion. The construction thereof is complicated and no details are given with regard to fitting of the webs and/or sealing.
  • structures are known in which a stiffener is provided in a fixed position at the end of a cushion during production and this stiffener is fitted in a profile. Such a structure can be achieved in a very simple manner, but demands a very high degree of dimensional accuracy.
  • a structure of this type it is no longer possible to transport the cushion in a space-saving manner to the site where it is to be used. Numerous other structures have been proposed in the prior art which are not very satisfactory either.
  • EP 0,277,073 discloses an attachment means for a single film layer, comprising a retaining profile about which the film web is folded and which is fitted in a cavity in which a further retaining profile interacting therewith is provided.
  • EP 1,350,906 discloses a structure with a film roof which is based on a single film web which is folded around a retaining profile.
  • the double-walled insulating roof covering is formed by two film webs which are spaced apart and are shaped into cushions by the fact they are closer together at their ends than in the center of the covering part formed by the cushion film.
  • Such cushions can be produced in a very simple manner and have been found to offer sufficient resistance to external weather conditions while also ensuring that the cultivation space is completely sealed, provided that a suitable film material is selected.
  • Folding the sheets of film material over the attachment strip prevents the risk of rain penetrating to the inside. This is particularly important when using a roof with film cushion where the film cushion is arranged substantially horizontally.
  • the film webs can be attached in the cavity in any conceivable manner.
  • the film webs are attached by realising said cavity in said profile in such a manner that when said retaining strip and the layers of film material applied thereto are fitted in said cavity and a force is applied to said film material, said retaining strip is forced out of said cavity, in which a further retaining strip which is to be fitted in said cavity is present, said cavity and said further retaining strip being embodied such that when a force is exerted on said film material, said further retaining strip inhibits movement of said retaining strip.
  • a separate locking of the retaining strip is provided by means of a further retaining strip.
  • the locking is such that when a force is applied to the retaining strip the further retaining strip is gradually forced further into position.
  • the structure is embodied such that the retaining strip cannot be removed from the cavity of the attachment profile without first removing the further retaining strip. If the cushion, that is to say the retaining strip, is not subjected to load, the further retaining strip can be fitted and removed relatively easily. Once the further retaining strip has been taken out, the retaining strip can be removed in a simple manner or will move by its own accord out of the cavity of the attachment profile.
  • the retaining strip may be integrally formed with the film cushion. However, according to an advantageous embodiment of the invention, it is a separate component as a result of which the retaining strip as well as the further retaining strip can be supplied to the attachment site separately.
  • both layers of film material are fitted on one side of said retaining strip and lying on top of one another.
  • the material may preferably be supplied on the building site on rolls and the same applies to the material of the film cushion which can be supplied in the form of rolls. This makes it possible to cover great lengths in a very quick and effective manner. Consideration may in this case be given to shopping streets, cultivation spaces such as greenhouses and the like. These may be several tens to several hundreds of meters long and the present invention makes it possible to provide a sheathing, such as a roof covering, over such great lengths in a quick and effective manner.
  • both layers of film material from which the cushion is constructed are fixedly clamped by the retaining strip. According to a particular embodiment, these can additionally also be engaged by the further retaining strip.
  • Both the stiffener or bead and the retaining strip may be standard profiles.
  • the outer periphery is smooth, that is to say, it does not have any protruding ribs, recesses or the like.
  • the above-described clamping action can be achieved by the interaction between the stiffeners, beads or retaining strip and the attachment profile without there thus being any need to use screws or the like. More particularly, such stiffeners are or such a retaining profile is circular in shape, so that standard profiles are sufficient. Such a construction is less affected by variations in the thickness of the film to be used.
  • the attachment profile preferably comprises two adjacent cavities, one for the retaining profile and one for the further retaining profile and these cavities are preferably arranged in a staggered manner with respect to one another.
  • the inlet to these cavities is preferably arranged and embodied in such a manner that it drains water away in the position of use, so that there is no risk of any damage through water ingress upon exposure to the environment.
  • a roof which is designed in this way is a flat, substantially horizontal roof from which the covering sections which are formed by the cushions protrude in a slightly convex manner.
  • the film is preferably light- transmitting.
  • a screening structure in order to prevent external light from entering a cultivation space, for example on summery days.
  • a screen is provided between the film webs and may, for example, comprise a number of slats which are arranged on one of the film webs and which, through being tilted, optionally (partially) prevent light from passing through.
  • a particularly insulating gas is provided between the film webs.
  • the film webs are brought closer to one another near the spot where they are attached to the supporting structure and attached to one another in a sealing manner.
  • a stiffener or bead structure may be provided for this purpose.
  • the supporting structure may comprise a combination of longitudinal and cross beams which together form a grid structure. This pressing structure does not have to extend on all sides of the cushion. It is possible to construct a series of cushions from two webs.
  • the supporting structure has to be insulated in some way with respect to either the environment or the cultivation space.
  • the supporting structure is provided with an insulating layer and a further profile is provided on this insulating layer.
  • the film webs which form the cushions are preferably attached to said profile, so that a structure is provided which is completely free from thermal bridges.
  • the structure with side walls may, in an advantageous embodiment of the invention, be designed in the form of panels of plastic material which are arranged at a distance from one another.
  • the temperature of the floor of the cultivation space is lower than that of the remainder of the cultivation space so that water vapor will condense in a controlled manner.
  • the film cushion may consist of a number of webs of material which are attached to one another.
  • a material which is particularly satisfactory is an ETFE film.
  • the invention also relates to a film cushion comprising a number of webs of film material which have been attached to one another to form a closed loop.
  • the invention relates to a method for providing a sheathing in a supporting structure, which supporting structure is provided with an attachment profile embodied to accommodate a retaining profile and a further retaining profile therein, to provide a roll of cushion material comprising two webs of film material lying on top of one another and to provide a separate roll of retaining strip material and further retaining strip material, respectively, which retaining strip material is fitted in a cavity of said attachment profile and is fixed in said cavity of said attachment profile by said retaining strip material and further retaining strip material, respectively.
  • the cushion may be filled with air or another gas in any way which is known in the prior art.
  • a permanent connection to a source of gas or air may be present.
  • the present invention makes it possible to compensate for dimensional inaccuracies on the building site as the first retaining profile can be positioned in an arbitrary position with respect to the webs of film material.
  • a roll of film material which serves as a cushion can be wound up in a very compact and tight manner.
  • contamination can largely be excluded with this structure, in particular at the location of the retaining profile and the further retaining profile.
  • no kits or other sealing means are required.
  • Fig. 1 diagrammatically shows a perspective and partially cut-away view of a cultivation space according to the invention
  • Figs.2a-c show a detail of the roof structure according to the present invention
  • Fig. 3 diagrammatically shows a variant of the invention provided with the cushion film according to the invention
  • Fig. 4 shows the composition of a cushion from various webs
  • Figs. 5a-e show a detail of the structure illustrated in Fig. 3 with the various steps for attaching the cushion to an attachment profile
  • Figs. 6a-d shows the fitting of a roof sheathing to a building structure.
  • a cultivation space is denoted overall by reference numeral 1 and is preferably designed to grow crops therein.
  • the growing or cultivation space consists of a number of walls 2, the ends of which are delimited by posts 3.
  • the walls preferably consist of plastic panels which are a small distance apart.
  • the plastic is light-transmitting and provides a high degree of insulation.
  • the post is either made from a plastic material or from a heat-conducting material. In the latter case, measures are taken to prevent the formation of a thermal bridge between the post and the environment or the post and the interior of the growing space.
  • Reference numeral 4 denotes the roof of the growing space which consists of a number of longitudinal beams 5 and cross beams 6 which intersect. Inside the grid delimited by the latter, cushions 7 are in each case fitted.
  • each cushion 7 consists of two webs of film material 9 and 10 which are spaced apart and between which air is introduced at a slight excess pressure.
  • fig. 1 shows a compressor 19 which produces an excess pressure in each of the cushions 7 via a line 20 and a distribution system which is not illustrated in any more detail.
  • each beam 6 (as well as each beam 5) is provided with a layer of insulating material 16.
  • a profile 8 is fitted in turn and this profile 8 is provided with the attachment means containing the end 11 of the cushion 7.
  • the end 11 of the cushion 7 is provided with a bead or core 15 in order to facilitate the attachment thereof.
  • Fig. 2 also indicates how an attachment clip 12 may be provided on beam 6, if desired, which ensures the attachment of two adjacent air cushions 7.
  • the webs 9 and 10 are not interrupted and they are only pressed together locally so that sealing in that location is not an issue.
  • Fig. 2 also shows a slat structure 18 which is situated on the bottom web 10. It can be tilted in a manner which is not illustrated in any more detail such that light is prevented from passing through the light-transmitting film material of webs 9 and 10, as a result of which the interior of the cultivation space 1 is screened off with respect to the environment
  • a spraying installation 13 is provided, having outlets 14 for dispensing atomized water vapor.
  • the floor 17 of the cultivation space 1 has a lower temperature than the remainder of the cultivation space so that any water vapor may condensate there.
  • all walls, including the roof of the cultivation space according to the present invention are embodied in such a manner that there is no condensation of water vapor there.
  • the crops can continuously or discontinuously be supplied with moisture in a very simple manner which significantly stimulates growth.
  • Fig. 3 illustrates a building structure, such as a greenhouse, comprising a number of posts 102 and beams 103 which also serve as gutters. Cushions 104 according to the present invention are in each case provided between adjacent parallel beams. These provide a roof covering/roof sheathing which is simple to fit and insulates very well.
  • Figs. 5a-e show details of how cushion 104 is attached to beam 103.
  • each beam is provided with an attachment profile 110.
  • Profile 110 comprises an internal cavity having an inlet 113.
  • the internal cavity comprises a first cavity 111 and a second cavity 112. These are arranged slightly offset with respect to one another.
  • retaining strips or beads are provided.
  • Reference numeral 108 denotes a first bead and reference numeral 109 a second bead.
  • the cushion comprises two sheets of film material 105, 106 which are situated on top of one another at the end 107. If desired, a welded joint or the like may be present.
  • part 107 is laid on the attachment profile 110 in such a manner that a sufficient length thereof protrudes to be introduced in the first cavity 111.
  • the first stiffener 108 is inserted which pushes the sheets 105, 106 lying on top of one another against the top of the attachment profile 110 (fig. 5c).
  • a force were to be exerted on the sheets 105, 106 in a direction away from the attachment profile 110, this would result in a downwards movement of the first bead 108 and result in the clamps of the sheets 105, 106 becoming detached with respect to the attachment profile 110.
  • a second bead or stiffener 109 is provided in the second cavity 112 after the first bead or stiffener 108 has been inserted. This is shown diagrammatically in figs. 4d and e.
  • the structure according to the present invention in which the top side 01 of the attachment profile is covered by the film webs does not result in problems with ingress of water. Water will run to the gutter which is situated next to the attachment profile without the attachment profile being subjected to water or other weather conditions.
  • the second bead 109 is in such a stable position that, when the downwardly acting force of the first bead 108 exerts a tensile force on the sheets 105, 106 so as to move them out of the attachment profile 110, the second bead 109 is pushed further into position in the cavity 112 without the first bead 108 being able to move downwards to a substantial degree.
  • the seal between the first bead 108, the sheets 105, 106 and the attachment profile 110 is still ensured or even improved, as the clamping force acting on this seal increases. It will be understood that if there is no clamping force, it is relatively easy to remove the second bead 109 again and thus take the other parts of the structure apart.
  • Fig. 4 shows a cross section of a cushion which is embodied as a loop comprising several webs 115 which are in each case welded together at 116.
  • the loop is denoted overall by reference numeral 114. Obviously, it is possible to use a greater or smaller number of welds.
  • fig. 6 shows an application of the present invention which substantially corresponds to that which is shown in fig. 1.
  • Fig. 6a provides providing two sheets 105, 106 rolled up to form a roll 117 without stiffener.
  • Fig. 6b shows how this double web is rolled out.
  • Fig. 6c shows how a roll 118 of first stiffener material and a roll 119 of second stiffener material are provided.
  • the beams 103 are provided with attachment profiles 110 and, subsequently, the first stiffener 108 and second stiffener 109 are fitted in the manner which is described above.
  • a line 120 (fig.
  • the sheets 105, 106 may be treated in any desired way in order to obtain certain optical or thermal insulating properties.
  • roof- sheathing material By means of the present invention, it is possible to move large amounts of roof- sheathing material in a very compact manner and to install such material in a particularly quick way.
  • the sheets only have to be approximately cut to size at the production site, and further finishing may be carried out at the building site. Removal can also be carried out in a quick manner.
  • Such a roof sheathing has a particularly low weight, as a result of which the requirements for the other parts of the structure can also be lowered, resulting in a less expensive way of building.
  • the cultivation space 1 may be provided with further structures which are customary in the prior art.
  • measures may be taken in order in order to be able to grow the respective crops (not shown) in such a manner that they can be moved, for example by means of rolling containers or growing systems suspended from the beams 5 and 6 or another structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Greenhouses (AREA)

Abstract

La présente invention concerne une structure de toit (4) pour un espace de culture (1). Une structure de soutien (5, 6) possédant des gouttières et des profils de fixation est présente. Le toit (4) comprend des coussinets formés par des voiles allongés d'une matière en film (9, 10) qui sont fixés les uns aux autres au niveau des profils de fixation (110). La structure est conçue de façon que l'eau soit drainée par le profil de fixation (110) et, plus particulièrement, que son côté supérieur soit recouvert du film formant coussinet. La fixation et le profil de fixation (110) comprennent une bande de retenue (108) et une bande de retenue supplémentaire (109).
PCT/NL2007/050619 2006-12-04 2007-12-04 Structure de toit pour un espace de culture WO2008069658A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL2000352 2006-12-04
NL2000352A NL2000352C2 (nl) 2006-12-04 2006-12-04 Dakconstructie voor een teeltruimte.
NL2000470 2007-02-02
NL2000470A NL2000470C2 (nl) 2007-02-02 2007-02-02 Foliekussen-bevestigingssamenstel.

Publications (1)

Publication Number Publication Date
WO2008069658A1 true WO2008069658A1 (fr) 2008-06-12

Family

ID=39492430

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2007/050619 WO2008069658A1 (fr) 2006-12-04 2007-12-04 Structure de toit pour un espace de culture

Country Status (1)

Country Link
WO (1) WO2008069658A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017153782A3 (fr) * 2016-03-11 2017-10-19 Evolve Growing Solutions Limited Structures
CN107593186A (zh) * 2017-11-07 2018-01-19 黄平县阿仙萝综合开发有限公司 一种收缩型大棚
WO2018231484A1 (fr) * 2017-06-14 2018-12-20 Grow Solutions Tech Llc Système et procédé de mise sous pression d'un module de culture
DE102019006109A1 (de) * 2019-08-29 2021-03-04 LANCO - Dr. Lange GmbH & Co. KG Aufblasbares Zelt
DE102020110551A1 (de) 2020-04-17 2021-10-21 X GLOO GmbH & Co. KG Befestigungsvorrichtung für eine Gewebetasche oder für einen mit Gas aufgepumpten Gewebekörper

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021834A1 (fr) * 1979-06-26 1981-01-07 The British Petroleum Company p.l.c. Paroi et/ou élément de toiture d'isolation thermique
EP0013080B1 (fr) * 1978-12-21 1983-02-16 Imperial Chemical Industries Plc Assemblage de double-vitre
US4472862A (en) * 1980-09-18 1984-09-25 Bloomfield Roger D Film fasteners for flexible sheets
EP0277073A2 (fr) 1987-01-30 1988-08-03 Jean Dalo Dispositif de fixation du bord d'une nappe tendue, applicable notamment à la fixation du bord inférieur d'une toile de tente et abri léger pourvu d'un tel dispositif
EP0199592B1 (fr) * 1985-04-24 1991-04-10 Flexiplant Usa Immeuble gonflable
DE4023366A1 (de) * 1990-07-23 1992-01-30 Guenther Ludwig Vorrichtung zur erzeugung von nebel vorzugsweise fuer gewaechshaeuser und wintergaerten
EP1350906A2 (fr) 2002-04-02 2003-10-08 Benedict George Morris Elément de bâtiment
GB2399379A (en) * 2003-03-10 2004-09-15 Norfolk Greenhouses Ltd Plastics panel
EP1637031A1 (fr) 2003-06-23 2006-03-22 Asahi Glass Green-Tech Company, Limited Toiture en film a base de resine transparente et construction comprenant cette derniere

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013080B1 (fr) * 1978-12-21 1983-02-16 Imperial Chemical Industries Plc Assemblage de double-vitre
EP0021834A1 (fr) * 1979-06-26 1981-01-07 The British Petroleum Company p.l.c. Paroi et/ou élément de toiture d'isolation thermique
US4472862A (en) * 1980-09-18 1984-09-25 Bloomfield Roger D Film fasteners for flexible sheets
EP0199592B1 (fr) * 1985-04-24 1991-04-10 Flexiplant Usa Immeuble gonflable
EP0277073A2 (fr) 1987-01-30 1988-08-03 Jean Dalo Dispositif de fixation du bord d'une nappe tendue, applicable notamment à la fixation du bord inférieur d'une toile de tente et abri léger pourvu d'un tel dispositif
EP0277073B1 (fr) * 1987-01-30 1992-06-10 Jean Dalo Dispositif de fixation du bord d'une nappe tendue, applicable notamment à la fixation du bord inférieur d'une toile de tente et abri léger pourvu d'un tel dispositif
DE4023366A1 (de) * 1990-07-23 1992-01-30 Guenther Ludwig Vorrichtung zur erzeugung von nebel vorzugsweise fuer gewaechshaeuser und wintergaerten
EP1350906A2 (fr) 2002-04-02 2003-10-08 Benedict George Morris Elément de bâtiment
GB2399379A (en) * 2003-03-10 2004-09-15 Norfolk Greenhouses Ltd Plastics panel
EP1637031A1 (fr) 2003-06-23 2006-03-22 Asahi Glass Green-Tech Company, Limited Toiture en film a base de resine transparente et construction comprenant cette derniere

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017153782A3 (fr) * 2016-03-11 2017-10-19 Evolve Growing Solutions Limited Structures
AU2017230958B2 (en) * 2016-03-11 2021-12-16 Evolve Growing Solutions Limited Structures
WO2018231484A1 (fr) * 2017-06-14 2018-12-20 Grow Solutions Tech Llc Système et procédé de mise sous pression d'un module de culture
US11026373B2 (en) 2017-06-14 2021-06-08 Grow Solutions Tech Llc Systems and methods for pressurizing an assembly line grow pod
CN107593186A (zh) * 2017-11-07 2018-01-19 黄平县阿仙萝综合开发有限公司 一种收缩型大棚
DE102019006109A1 (de) * 2019-08-29 2021-03-04 LANCO - Dr. Lange GmbH & Co. KG Aufblasbares Zelt
DE102020110551A1 (de) 2020-04-17 2021-10-21 X GLOO GmbH & Co. KG Befestigungsvorrichtung für eine Gewebetasche oder für einen mit Gas aufgepumpten Gewebekörper

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